Post Utme Unn 2021 Chemistry Question 31

Practice objective / multiple choice question 31 from the 2021 Post Utme Unn Chemistry examination.

Post Utme Unn 2021 Chemistry Objective / Multiple Choice

Question 31 POST_UTME_UNN • 2021 • CHEMISTRY • objective

The rate cons\tant (k) for a first-order reaction is given by the equation: ln\( [A]t/[A]0 \) = -kt. If the half-life of the reaction is 20 minutes, what is the value of k?

A. 0.0345 min^-1

Correct Answer B. 0.0352 min^-1

C. 0.0368 min^-1

D. 0.0385 min^-1

Correct Answer

Correct Option:

0.0352 min^-1

This is Post Utme Unn 2021 Chemistry Question 31. It is one of the objective questions from the 2021 Post Utme Unn Chemistry examination.

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